Machine for fixing clasps



P. SWITZE NY MACHINE Fon FIXING. cLAs'Ps Oct. 16, 1928.

Filed May 26, 1927 Patented 16, 1928.

TES

UNITED STA.

PATENT -oFFloE -zif ,PAUL' SWITZENY, or wean, ausraiagj MACHI E FOB FIXINGL QLASPS.

Application filed May 26,19 27, Serial No. 194,435, and in Austria June 1, 1926.,

I Thisinvention relates to improvements in 7 machines for fixing clasps on packets or packages, such as for instance a numberof sheets or the like which are'to be fixedtogether, in which U-shaped wire or sheet metal clasps are fixed to the articles, which are to be bound together, by a blow applied to the head-piece of a driver, and whereby with the same machine also cardboard or like rolls and boxes can be stapled or fixed together. In the case of fastening pliers it has been proposed already to dispose the fixing head at the side of the plane of the plierslimbs and to arrange the clasps-guide parallel with respect to the pivot of the pliers. However such an arrangement does not satisi'y the demands, because the limbs of the U-shaped clasps which have to be bent up or down are located at a different distance from the axis of rotation or pivot and therefore, on pressing the limbs against the sheets to be fixed together, the limb which is more remote from the said axis of rotation or pivot is not compressed to the same extent as the limb which is located nearerto the said axis or pivot, this drawback increasing with the thickness of the articles to be fastened together. This drawback is not greatly felt in the case of fastening pliers, because already in consequence of the smaller compression, efiected solely by closing the limbs of the pliers, only a small number 01'": sheets can be fastened together. In the event of a large number of paper-sheets it may be the case,

that the limb of the clasp located at the outside does not sulficiently extend out at the backside of the paper parcels or package to be fastened together, so that the end of'it cannot be turned down onto the paper.

According to the present invention this v drawback is removed, in that the axis of rotation' or pivot of the hinged plates of the 1 machine is disposed vertically with respect to clasps-guide, whereby the fixing head is lo cated laterally. Both clasp-limbs are now disposed the same distance away from the axis of rotation and on striking the fixing head simultaneously contact with the bed-die and are compressed with the same force on the sheets to be fastened "together, so that both clasp-limbs are securely fixed even'in the case of a machine with displaced fixing head.

In order to render possible the fixing of rolls sleeves or boxes, the bed-plate, which is widened in consequence of the lateral disposition of the fixing head, is provided with a recess extendingp'arallel with respect to, the fixing plane, so that two armsvare formed on the bed-plate, wherebyrthearm most remote from the axisof rotation carries the discooperating with the head-die. Rolled, sleeves or the like 'ofa pliable strip can be pushed over this small arm and can be fastened together, whereby-the middle or connecting portion of the U-shaped clasps lies in the di-' rection of the axis of the roll.

One mode of carrying out the present invention is illustrated by way of example on the accompanying sheet of drawing in which v v Figs. 1 and 2 show the machine for fixing clasps in plan view and side View respectively A top-plate 4, carrying a fixing head 3 and l a clasps-magazine 7, is hinged to the rectangular bed-plate 1, by a hinge 5, which is arranged in the corner of the bed-plate and the axis of rotation of which extends parallel to the longitudinal side of the bed-plate. The fixing head 3 is constructed in knownmanner and is disposed in'that corner of the top plate 4, which lies diagonally opposite the corner of the hinge 5, while the clasps-magazine 7 is disposed vertically and laterally to the shaft of the hinge 5. The U-shaped clasps, which are automatically fed to the top-die by a spring 8, are located vertically with respect to'the longitudinal direction of the magazine 7. At any angular position of the top-plate 4, the limbs of the claspsare the same distance away from the elongated imaginary axis of the hinge, and therefore simultaneously meet the bottom-die 9 and are ressed onto the backside of the articles to be xed together with a like force when striking the knob 6 of the head-die. 1

The forward end of the bed-plate 1 is pro- 'vided with a recess, whereby two arms are formed, which extend parallel with respect to the fixing line. The end of the arm 2 thus formed lies underneath the bottom-die 9 and the top-die, located in the fixing head 3. The other arm of the bed-plate serves for maintaining the stability of the machine when striking the knob 6 of the top-die. The arm 2 can'be of any convenient small width, in

order to push rolls or sleeves of a small di- I'claim:-

1. A machine for fixing U-shaped clasps on a package, comprising in combination a bed-plate having a recess thereinproviding tWo spaced arms, a top-plate hinged to the bed-plate at one corner thereof, a claspsguide arranged on the top-plate and disposed at a right angle With respect to the axis of rotation of the said top-plate, a head provided with a driver secured to the top-plate and disposed laterally With respect to the axis of rotation-03E the said top-plate above that arm of the bed-plate which is most remote from the said axis of rotation, and a die secured to the bed-plate arm last mentioned.

2. A machine for fixing U-shaped Clasps on a package, comprising in combination a bed-plate, a top-plate hinged to the latter at one corner thereof, a clasps-guide arranged on the top-plate and disposed at a right angle With respect tothe axis of rotation of the said top-plate, and a head provided With a driver secured to the top-plate and disposed laterally with respect to the axis of rotation said axis of rotation.

In testimony whereof I afliX my signature.

PAUL SWITZENY. 

